In the field of hydraulic system assembly, the reliability of the hose assembly is directly related to the safety and service life of the entire system. Among them, skimming and non-skimming are two completely different hose pretreatment processes, and the choice of which method often confuses technicians. In this article, Liwang Fluid will comprehensively analyze the technical characteristics and applicable scenarios of these two processes to provide professional reference for hydraulic system designers and maintenance personnel.

 

1.1 Core features

 

Skiving Process: refers to the use of special tools to completely remove the outer rubber layer at the end of the hose to expose the internal reinforcement layer (usually a steel wire braid or winding layer). This process requires precise control of the skimming length, which should generally be about 1.5 times the insertion depth of the connector. The end of the hose after skimming presents a neat step-like transition, ensuring that the connector can form a direct and firm connection with the reinforcement layer.

 

Non-Skiving Process: The complete outer rubber layer of the hose is retained and the connection is achieved through a special connector design. This process relies on the compression deformation of the rubber layer by the connector to achieve sealing and fixing effects. Modern non-stripping technology has been developed to withstand working pressures up to 3000 PSI.

 

 

1.2 Technical advantages of the two processes

 

The hose assembly using the stripping process has significant mechanical performance advantages:

Tear-off strength increased by 30-40%: Test data show that the pull-off force of the joint after stripping generally reaches more than 80% of the hose bursting pressure

Extended pulse life: In the dynamic pressure test, the pulse number of the stripping assembly can be 2-3 times higher than that of the non-stripping product

Enhanced sealing reliability: Direct contact between metal and metal eliminates the risk of sealing failure caused by rubber aging

 

The non-stripping process shows unique value in specific scenarios:

Installation efficiency increased by 50%: Eliminating the stripping step can significantly shorten the assembly time

Reduced equipment investment: No need to purchase expensive stripping equipment

Enhanced environmental adaptability: The complete outer rubber layer provides better corrosion protection

 

1.3 Selection based on application scenarios

 

Scenarios where the stripping process must be selected:

✓ Systems with working pressure exceeding 3000 PSI

✓ Circuits with high-frequency pressure pulsations

✓ Connections at safety-critical parts

✓ Expected service life of more than 5 years

 

Scenarios where the non-stripping process can be considered:

✓ Low-pressure lubrication or oil return pipeline

✓ Temporary repair and emergency replacement

✓ Limited installation space

✓ Connection points that need to be replaced frequently

 

Stripping and non-stripping processes each have their own technical characteristics and applicable fields. When choosing, it is necessary to comprehensively consider pressure level, dynamic characteristics, environmental conditions and cost factors. Liwang Fluid recommends that engineers give priority to the stripping process in key parts, and evaluate the non-stripping solution in secondary circuits.